From 6e285b15a13ddf3498dfcdebe643c17a5b0dfbe6 Mon Sep 17 00:00:00 2001
From: Sandro Santilli <strk@keybit.net>
Date: Mon, 16 Jan 2012 10:11:44 +0000
Subject: [PATCH] Implement lwgeom_same for circularstring (#1475)

git-svn-id: http://svn.osgeo.org/postgis/trunk@8828 b70326c6-7e19-0410-871a-916f4a2858ee
---
 liblwgeom/liblwgeom.h.in |  1 +
 liblwgeom/lwgeom.c       |  3 +++
 regress/wkb.sql          | 22 ++++++++++++++++++++++
 regress/wkb_expected     |  4 ++++
 4 files changed, 30 insertions(+)

diff --git a/liblwgeom/liblwgeom.h.in b/liblwgeom/liblwgeom.h.in
index bdcdf3aca..c5282f446 100644
--- a/liblwgeom/liblwgeom.h.in
+++ b/liblwgeom/liblwgeom.h.in
@@ -1121,6 +1121,7 @@ char lwline_same(const LWLINE *p1, const LWLINE *p2);
 char lwpoly_same(const LWPOLY *p1, const LWPOLY *p2);
 char lwtriangle_same(const LWTRIANGLE *p1, const LWTRIANGLE *p2);
 char lwcollection_same(const LWCOLLECTION *p1, const LWCOLLECTION *p2);
+char lwcircstring_same(const LWCIRCSTRING *p1, const LWCIRCSTRING *p2);
 
 
 /**
diff --git a/liblwgeom/lwgeom.c b/liblwgeom/lwgeom.c
index 7ae3ed67f..b5d0a6e4f 100644
--- a/liblwgeom/lwgeom.c
+++ b/liblwgeom/lwgeom.c
@@ -510,6 +510,9 @@ lwgeom_same(const LWGEOM *lwgeom1, const LWGEOM *lwgeom2)
 	case TRIANGLETYPE:
 		return lwtriangle_same((LWTRIANGLE *)lwgeom1,
 		                       (LWTRIANGLE *)lwgeom2);
+	case CIRCSTRINGTYPE:
+		return lwcircstring_same((LWCIRCSTRING *)lwgeom1,
+					 (LWCIRCSTRING *)lwgeom2);
 	case MULTIPOINTTYPE:
 	case MULTILINETYPE:
 	case MULTIPOLYGONTYPE:
diff --git a/regress/wkb.sql b/regress/wkb.sql
index 325795b2a..1057f26b3 100644
--- a/regress/wkb.sql
+++ b/regress/wkb.sql
@@ -281,3 +281,25 @@ select g, encode(st_asbinary(g::geometry, 'ndr'), 'hex'),
           encode(st_asbinary(g::geometry, 'xdr'), 'hex') FROM ( SELECT
  'GEOMETRYCOLLECTION ZM EMPTY'
 ::text as g ) as foo;
+
+-- CIRCULARSTRING
+select g, encode(st_asbinary(g::geometry, 'ndr'), 'hex'),
+          st_orderingequals(g::geometry, ST_GeomFromWKB(ST_AsBinary(g::geometry))),
+          encode(st_asbinary(g::geometry, 'xdr'), 'hex') FROM ( SELECT
+ 'CIRCULARSTRING EMPTY'
+::text as g ) as foo;
+select g, encode(st_asbinary(g::geometry, 'ndr'), 'hex'),
+          st_orderingequals(g::geometry, ST_GeomFromWKB(ST_AsBinary(g::geometry))),
+          encode(st_asbinary(g::geometry, 'xdr'), 'hex') FROM ( SELECT
+ 'CIRCULARSTRING Z EMPTY'
+::text as g ) as foo;
+select g, encode(st_asbinary(g::geometry, 'ndr'), 'hex'),
+          st_orderingequals(g::geometry, ST_GeomFromWKB(ST_AsBinary(g::geometry))),
+          encode(st_asbinary(g::geometry, 'xdr'), 'hex') FROM ( SELECT
+ 'CIRCULARSTRING M EMPTY'
+::text as g ) as foo;
+select g, encode(st_asbinary(g::geometry, 'ndr'), 'hex'),
+          st_orderingequals(g::geometry, ST_GeomFromWKB(ST_AsBinary(g::geometry))),
+          encode(st_asbinary(g::geometry, 'xdr'), 'hex') FROM ( SELECT
+ 'CIRCULARSTRING ZM EMPTY'
+::text as g ) as foo;
diff --git a/regress/wkb_expected b/regress/wkb_expected
index 2943b4947..9da5ab8a5 100644
--- a/regress/wkb_expected
+++ b/regress/wkb_expected
@@ -52,3 +52,7 @@ GEOMETRYCOLLECTION EMPTY|010700000000000000|t|000000000700000000
 GEOMETRYCOLLECTION Z EMPTY|01ef03000000000000|t|00000003ef00000000
 GEOMETRYCOLLECTION M EMPTY|01d707000000000000|t|00000007d700000000
 GEOMETRYCOLLECTION ZM EMPTY|01bf0b000000000000|t|0000000bbf00000000
+CIRCULARSTRING EMPTY|010800000000000000|t|000000000800000000
+CIRCULARSTRING Z EMPTY|01f003000000000000|t|00000003f000000000
+CIRCULARSTRING M EMPTY|01d807000000000000|t|00000007d800000000
+CIRCULARSTRING ZM EMPTY|01c00b000000000000|t|0000000bc000000000
-- 
2.40.0